Collaborative Research: Polenet East: An International Seismological Network for East Antarctica

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。东南极洲的高海拔对于确定新生代初始冰川的局域化和稳定暖间冰期冰川的融化至关重要。然而，对该地区的地质历史和维持高原的地球物理机制了解甚少。2007年至2009年，一个由24台宽带地震仪组成的阵列（名为GAMSEIS）被安装在东南极高原的甘布尔tsev山脉地区，作为南极洲？AGAP国际极地年项目。IPY AGAP/GAMSEIS项目包括其他国际合作伙伴在甘布尔采夫山脉侧翼和其他南极东部地区安装地震仪的计划。拟议的项目将继续运行六个已部署的AGAP/GAMSEIS台站两年多，同时增加两个新的宽带地震台站，以扩大阵列的地理范围。大多数站点将位于现有的美国自治地球物理观测站和USAP燃料储存库位置，以尽量减少后勤支持。这个阵列与中国和日本部署的地震仪（不久的将来可能还有澳大利亚、法国和意大利）相结合，将为南极东部高原下地壳和上地幔结构的长期研究提供一个稀疏但大规模的地震仪网络。对学生的持续依赖为这项拟议的研究提供了更广泛的影响，并坚定地将这一努力作为其教育使命的基础。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The high elevations of East Antarctica are critical in localizing the initial Cenozoic glaciation and stabilizing it with respect to melting during warm interglacials. However, the geological history for this region and the geophysical mechanism for maintaining the highlands are poorly understood. In 2007-2009, an array of 24 broadband seismographs (named GAMSEIS) was installed across the Gamburtsev Mountains area of the East Antarctic Plateau as part of the Antarctica?s Gamburtsev Province (AGAP) International Polar Year project. The IPY AGAP/GAMSEIS program included plans by other international partners to install seismographs at locations along the flanks of the Gamburtsev Mountains and in other East Antarctic regions. The proposed project will continue operating six of the deployed AGAP/GAMSEIS stations for two more years together with two new broadband seismic stations added to broaden the geographic scope of the array. Most stations will be located at the existing U.S. Autonomous Geophysical Observatories and the USAP fuel cache locations in order to minimize logistical support. This array, combined with seismographs deployed by China and Japan (and possibly Australia, France, and Italy in near future) will provide a sparse but large-scale network of seismometers for the longer-term studies of the crustal and upper mantle structures underneath the East Antarctic Plateau. Continued reliance on students provides a broader impact to this proposed research and firmly grounds this effort in its educational mission.